/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package websale;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import junit.framework.TestCase;

import org.jbpm.JbpmConfiguration;
import org.jbpm.JbpmContext;
import org.jbpm.context.exe.ContextInstance;
import org.jbpm.file.def.FileDefinition;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;
import org.jbpm.identity.Entity;
import org.jbpm.identity.hibernate.IdentitySession;
import org.jbpm.identity.xml.IdentityXmlParser;
import org.jbpm.persistence.db.DbPersistenceServiceFactory;
import org.jbpm.svc.Services;
import org.jbpm.taskmgmt.exe.TaskInstance;
import org.jbpm.taskmgmt.exe.TaskMgmtInstance;

import com.powerhua.workflow.logic.WorkflowManager;
import com.powerhua.workflow.logic.jbpm.WorkflowManagerImpl;

public class WebsaleTest1 extends TestCase {

	JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance();
	DbPersistenceServiceFactory dbPersistenceServiceFactory = (DbPersistenceServiceFactory) jbpmConfiguration
			.getServiceFactory(Services.SERVICENAME_PERSISTENCE);

	JbpmContext jbpmContext;

	ProcessInstance processInstance = null;
	ContextInstance contextInstance = null;
	TaskMgmtInstance taskMgmtInstance = null;
	long processInstanceId = -1;

	public void setUp() {
		// dbPersistenceServiceFactory.createSchema();
		// deployProcess();
		jbpmContext = jbpmConfiguration.createJbpmContext();
	}

	public void tearDown() {
		jbpmContext.close();
		// dbPersistenceServiceFactory.dropSchema();
		jbpmContext = null;
	}

	public void newTransaction() {
		jbpmContext.close();
		jbpmContext = jbpmConfiguration.createJbpmContext();
	}

	public void deployProcess() {
		JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext();
		try {
			ProcessDefinition processDefinition = ProcessDefinition.parseXmlResource("websale/processdefinition.xml");
			
			jbpmContext.deployProcessDefinition(processDefinition);
		} finally {
			jbpmContext.close();
		}
	}

	public void loadIdentities() {
		JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext();
		try {
			Entity[] entities = IdentityXmlParser.parseEntitiesResource("hsqldb/identity.db.xml");
			IdentitySession identitySession = new IdentitySession(jbpmContext.getSession());
			for (int i = 0; i < entities.length; i++) {
				identitySession.saveEntity(entities[i]);
			}
		} finally {
			jbpmContext.close();
		}
	}

	public TaskInstance createNewProcessInstance() {
		processInstance = jbpmContext.newProcessInstanceForUpdate("websale");
		processInstanceId = processInstance.getId();
		contextInstance = processInstance.getContextInstance();
		taskMgmtInstance = processInstance.getTaskMgmtInstance();
		return processInstance.getTaskMgmtInstance().createStartTaskInstance();
	}

	public void reloadProcessInstance() {
		processInstance = jbpmContext.loadProcessInstanceForUpdate(processInstanceId);
		contextInstance = processInstance.getContextInstance();
		taskMgmtInstance = processInstance.getTaskMgmtInstance();
	}

	public void testWebSaleOrderTaskParameters() {
		TaskInstance taskInstance = createNewProcessInstance();
		assertEquals("Create new web sale order", taskInstance.getName());
		assertEquals(0, taskInstance.getVariables().size());
	}

	public void testPerformWebSaleOrderTask() {
		jbpmContext.setActorId("user");
		// create a task to start the websale process
		TaskInstance taskInstance = createNewProcessInstance();

		Map taskVariables = new HashMap();
		taskVariables.put("item", "cookies");
		taskVariables.put("quantity", "lots of them");
		taskVariables.put("address", "46 Main St.");

		taskInstance.addVariables(taskVariables);
		taskInstance.end();

		assertEquals("cookies", contextInstance.getVariable("item"));
		assertEquals("lots of them", contextInstance.getVariable("quantity"));
		assertEquals("46 Main St.", contextInstance.getVariable("address"));
		assertEquals("user", taskMgmtInstance.getSwimlaneInstance("buyer").getActorId());
	}

	public void testEvaluateAssignment() {
		jbpmContext.setActorId("user");
		// create a task to start the websale process
		TaskInstance taskInstance = createNewProcessInstance();
		taskInstance.setVariable("item", "cookies");
		taskInstance.end();
		jbpmContext.save(processInstance);
		processInstanceId = processInstance.getId();

		newTransaction();

		List sampleManagersTasks = jbpmContext.getTaskMgmtSession().findTaskInstances("manager");
		assertEquals(1, sampleManagersTasks.size());

		TaskInstance evaluateTaskInstance = (TaskInstance) sampleManagersTasks.get(0);
		assertEquals("manager", evaluateTaskInstance.getActorId());
		assertEquals("Evaluate web order", evaluateTaskInstance.getName());
		assertNotNull(evaluateTaskInstance.getToken());
		assertNotNull(evaluateTaskInstance.getCreate());
		assertNull(evaluateTaskInstance.getStart());
		assertNull(evaluateTaskInstance.getEnd());
	}

	public void testEvaluateOk() {
		TaskInstance taskInstance = createNewProcessInstance();
		taskInstance.end();
		jbpmContext.save(processInstance);

		newTransaction();

		TaskInstance evaluateTaskInstance = (TaskInstance) jbpmContext.getTaskMgmtSession()
				.findTaskInstances("manager").get(0);
		evaluateTaskInstance.end("OK");
		jbpmContext.save(evaluateTaskInstance);

		newTransaction();

		List sampleShippersTasks = jbpmContext.getTaskMgmtSession().findTaskInstances("shipper");
		assertEquals(1, sampleShippersTasks.size());

		TaskInstance waitForMoneyTaskInstance = (TaskInstance) sampleShippersTasks.get(0);
		assertEquals("shipper", waitForMoneyTaskInstance.getActorId());
		assertEquals("Wait for money", waitForMoneyTaskInstance.getName());
		assertNotNull(waitForMoneyTaskInstance.getToken());
		assertNotNull(waitForMoneyTaskInstance.getCreate());
		assertNull(waitForMoneyTaskInstance.getStart());
		assertNull(waitForMoneyTaskInstance.getEnd());
	}

	public void testUnwritableVariableException() {
		testEvaluateAssignment();
		newTransaction();
		List sampleManagersTasks = jbpmContext.getTaskMgmtSession().findTaskInstances("manager");
		TaskInstance evaluateTaskInstance = (TaskInstance) sampleManagersTasks.get(0);
		evaluateTaskInstance.end();

		newTransaction();

		processInstance = jbpmContext.getGraphSession().loadProcessInstance(processInstanceId);
		contextInstance = processInstance.getContextInstance();
		// so the cookies should still be in the item process variable.
		assertEquals("cookies", contextInstance.getVariable("item"));
	}

	public void testEvaluateNok() {
		testEvaluateAssignment();
		newTransaction();

		List sampleManagersTasks = jbpmContext.getTaskMgmtSession().findTaskInstances("manager");
		TaskInstance evaluateTaskInstance = (TaskInstance) sampleManagersTasks.get(0);
		evaluateTaskInstance.setVariable("comment", "wtf");
		evaluateTaskInstance.end("More info needed");
		jbpmContext.save(evaluateTaskInstance);

		newTransaction();

		List sampleUserTasks = jbpmContext.getTaskMgmtSession().findTaskInstances("user");
		assertEquals(1, sampleUserTasks.size());
		TaskInstance fixWebOrderDataTaskInstance = (TaskInstance) sampleUserTasks.get(0);
		assertEquals("user", fixWebOrderDataTaskInstance.getActorId());
		assertEquals("wtf", fixWebOrderDataTaskInstance.getVariable("comment"));
	}

	public void testMoreInfoNeeded() {
		jbpmContext.setActorId("user");

		// create a task to start the websale process
		TaskInstance taskInstance = createNewProcessInstance();
		taskInstance.end();
		jbpmContext.save(processInstance);

		newTransaction();

		TaskInstance evaluateTaskInstance = (TaskInstance) jbpmContext.getTaskMgmtSession()
				.findTaskInstances("manager").get(0);
		evaluateTaskInstance.end("More info needed");
		jbpmContext.save(evaluateTaskInstance);

		newTransaction();

		List sampleUserTasks = jbpmContext.getTaskMgmtSession().findTaskInstances("user");
		assertEquals(1, sampleUserTasks.size());

		TaskInstance fixWebOrderDataTaskInstance = (TaskInstance) sampleUserTasks.get(0);
		assertEquals("user", fixWebOrderDataTaskInstance.getActorId());
		assertEquals("Fix web order data", fixWebOrderDataTaskInstance.getName());
		assertNotNull(fixWebOrderDataTaskInstance.getToken());
		assertNotNull(fixWebOrderDataTaskInstance.getCreate());
		assertNull(fixWebOrderDataTaskInstance.getStart());
		assertNull(fixWebOrderDataTaskInstance.getEnd());
	}

	public void testNew() {
		WorkflowManager wfm = new WorkflowManagerImpl();
		wfm.getTasksByUserId("manager", "websale", null);
		
		List l = jbpmContext.getTaskMgmtSession().findTaskInstances("manager");
		TaskInstance ti = (TaskInstance)l.get(0);
		ProcessInstance pi = ti.getProcessInstance();
		ProcessDefinition pd = pi.getProcessDefinition();
		FileDefinition fileDefinition = pd.getFileDefinition();
		byte[] gpdBytes = fileDefinition.getBytes("gpd.xml");
		byte[] imageBytes = fileDefinition.getBytes("processimage.jpg");
	}
}
